Images of 60 Freeway Tanker Fire

It turns out the best marketing tool for a railroad is a closed freeway. Now, Metrolink is considering adding train cars to its Riverside County line because of the increase in business.

Train officials think the increase in ridership may be even greater Friday, as people who attempted to use freeways on Thursday decide it's not worth it.

Metrolink says bad freeway situations build a customer base, as commuters share stories of woe on the roads. And the company, while not hoping for problems, depends on these situations for marketing.

"When we talk to our current customers and ask them how they found out about Metrolink, the number one answer is word of mouth," says Metrolink's Sherita Coffelt. "That's the best P.R. can do, is seeing that the Metrolink is moving during peak hours when you're standing still."